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Compression of X-ray Free Electron Laser Pulses to Attosecond Duration.


ABSTRACT: State of the art X-ray Free Electron Laser facilities currently provide the brightest X-ray pulses available, typically with mJ energy and several hundred femtosecond duration. Here we present one- and two-dimensional Particle-in-Cell simulations, utilising the process of stimulated Raman amplification, showing that these pulses are compressed to a temporally coherent, sub-femtosecond pulse at 8% efficiency. Pulses of this type may pave the way for routine time resolution of electrons in nm size potentials. Furthermore, evidence is presented that significant Landau damping and wave-breaking may be beneficial in distorting the rear of the interaction and further reducing the final pulse duration.

SUBMITTER: Sadler JD 

PROVIDER: S-EPMC4645159 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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